Square Feet Conversion Calculator: Convert Sq Ft to Any Unit
Convert square feet to square meters, square yards, acres and more, with exact formulas and worked examples.
To convert square feet to square meters, multiply by 0.092903. To convert square meters to square feet, multiply by 10.7639. The free UseTools.in Square Footage Calculator handles the area and the units for you.
What Is a Square Feet Conversion Calculator?
Property listings, plot papers and building plans do not always use the same unit. One says 1,200 sq ft, another says 111 sq m, and the plot is described as 133 sq yd. A square feet conversion calculator turns an area in one unit into another, so you can compare them without doing long multiplication by hand.
It is useful for:
- Home buyers and renters comparing properties listed in different units
- Contractors and builders estimating material and labour
- Interior designers planning flooring, paint, wallpaper or false ceilings
- Real estate agents quoting plot and carpet areas
- Students solving area and mensuration problems
Square Feet Conversion Formulas
These are the standard factors for converting square feet:
| Convert | Formula |
|---|---|
| Sq ft to sq m | sq ft × 0.092903 |
| Sq m to sq ft | sq m × 10.7639 |
| Sq ft to sq yd | sq ft ÷ 9 |
| Sq yd to sq ft | sq yd × 9 |
| Sq ft to sq in | sq ft × 144 |
| Sq in to sq ft | sq in ÷ 144 |
| Sq ft to acres | sq ft ÷ 43,560 |
| Acres to sq ft | acres × 43,560 |
Square Feet Conversion Chart
| Unit | Equal to square feet |
|---|---|
| 1 square inch | 0.006944 sq ft |
| 1 square yard (1 gaj) | 9 sq ft |
| 1 square meter | 10.7639 sq ft |
| 1 acre | 43,560 sq ft |
| 1 hectare | 107,639 sq ft |
| 1 square kilometer | 10,763,910 sq ft |
| 1 square mile | 27,878,400 sq ft |
In India, plots are often sold in gaj, and 1 gaj equals 1 square yard, which is 9 sq ft. Local units such as bigha, biswa and kanal vary from state to state, so confirm the local conversion before a property deal.
How to Convert Square Feet: Step-by-Step Examples
Square feet to square meters
1,200 × 0.092903 = 111.48 sq m
Square meters to square feet
500 × 10.7639 = 5,381.95 sq ft
Square yards to square feet
200 × 9 = 1,800 sq ft
Square feet to acres
87,120 ÷ 43,560 = 2 acres
How to Calculate Area Before Converting
Before you convert, you need the area itself. The formula depends on the shape:
- Rectangle or square: Length × Width
- Triangle: ½ × Base × Height
- Circle: π × Radius²
12 × 10 = 120 sq ft, which is 13.33 sq yd or 11.15 sq m.
Pick a shape, enter dimensions in feet, inches, yards, meters or centimeters, add a rate and get the total area and estimated cost.
Open the Square Footage CalculatorHow to Use the UseTools.in Square Footage Calculator
- Select the shape: rectangle, triangle or circle.
- Enter the dimensions in your preferred unit.
- Set the quantity if you have several identical rooms or items.
- Add a price (optional) per square foot, meter, yard or other unit, and choose USD, INR or EUR.
- Click Calculate to see the total area and estimated cost.
120 × 80 = ₹9,600
Common Mistakes to Avoid
- Mixing units: Never multiply feet by inches. Convert both sides to the same unit first.
- Confusing carpet area and built-up area: Builders quote different areas, so check which one you are converting.
- Rounding too early: Keep decimals until the final step, especially for large plots.
- Skipping wastage: For tiles, flooring and paint, add 5 to 10 percent extra to the calculated area.
- Assuming local units are standard: Bigha, biswa, kanal and marla differ by region, so verify locally.
Accuracy matters because a small area error becomes a large money error. A 5 percent mistake on a 1,500 sq ft property priced at ₹6,000 per sq ft is a difference of ₹4,50,000.
Frequently Asked Questions
How many square feet are in a square meter?
1 square meter equals 10.7639 square feet.
How do I convert square feet to square meters?
Multiply the square feet value by 0.092903.
How many square feet are in a square yard?
1 square yard equals 9 square feet.
How many square feet are in an acre?
1 acre equals 43,560 square feet.
Is 1 gaj equal to 9 square feet?
Yes. 1 gaj is the same as 1 square yard, which equals 9 square feet.
Can I calculate cost along with the conversion?
Yes. Enter a price per unit in the UseTools.in calculator and it shows the total estimated cost in USD, INR or EUR.
Is the square footage calculator free?
Yes. It is completely free and needs no signup.
Final Thoughts
Remember the key factors: 1 sq m = 10.7639 sq ft, 1 sq yd = 9 sq ft and 1 acre = 43,560 sq ft. For everything else, use the free Square Footage Calculator to get your area, converted units and project cost together.